A high-viscosity modified asphalt pavement paving equipment

Abstract

The present invention discloses a paving device for high-viscosity modified asphalt pavement, which relates to the field of road paving and includes a vehicle body. It further includes: a mounting plate, which is connected to the vehicle body by bolts, and a screed is connected to the bottom of the mounting plate through a lifting mechanism; a de-sticking mechanism, which includes an electric heating plate fixedly connected to the inner side wall of the screed and a heating liquid filled inside the screed; a purification mechanism, which includes an air extraction pump fixedly connected to the outer side wall of the screed, a collection port fixedly connected to the air inlet of the air extraction pump through a pipeline, and a baffle fixedly connected to the outer side wall of the collection port. The present invention is a paving device for high-viscosity modified asphalt pavement. The exhaust gas generated by asphalt is adsorbed into the inside of the screed by the air extraction pump and comes into contact with ethylene glycol. At this time, ethylene glycol reacts or dissolves with the harmful substances in the asphalt exhaust gas, realizing the function of purifying the asphalt exhaust gas.

Description

Technical Field

[0001] The present invention relates to the field of road paving, and particularly to a paving device for a highly viscous modified asphalt pavement. Background Art

[0002] Highly viscous modified asphalt is a special asphalt that improves the viscosity and elasticity of asphalt by adding specific modifiers. Its preparation generally involves adding compatibilizers, polymer modifiers, special tackifiers, stabilizers, etc. to matrix asphalt. These additives can significantly increase the apparent viscosity of asphalt and improve its high and low temperature properties, and are suitable for steel bridge deck paving mixtures SMA and drainage pavements. Its high viscosity ensures good bonding with aggregates, thereby improving the durability and skid resistance of the pavement, and can maintain good pavement integrity and reduce maintenance requirements under heavy traffic conditions.

[0003] After retrieval, the publication (announcement) number: CN114481758B discloses an asphalt paving device and its construction method. An asphalt distribution device is arranged at the left end of the vehicle body chassis, a leveling device and a feeding device are arranged on the vehicle body platform, and the outlet of the feeding device is arranged directly above the feeding port of the asphalt distribution device. The leveling device includes a lifting oil cylinder, a mounting plate and a leveling plate. The piston rod of the lifting oil cylinder penetrates through the vehicle body platform and a lifting plate is fixedly arranged on the extending end. The mounting plate is fixedly arranged at the bottom of the connecting frame, and the leveling plate is arranged at the right end of the mounting plate. The leveling plate includes a scraper and a heat conducting plate fixedly connected together.

[0004] Although the above solution can improve the paving efficiency of the asphalt layer, since the temperature of the asphalt coming out of the paver is relatively high, harmful gases are easily generated from the asphalt at high temperatures, which will damage the physical health of construction workers. Moreover, the asphalt used is highly viscous modified asphalt. Due to its high viscosity, this material is extremely easy to adhere to the leveling plate during the paving process, which affects the continuity and efficiency of the paving operation, and will also cause problems such as poor pavement flatness and uneven surface, thus seriously affecting the overall quality and service life of the road. Summary of the Invention

[0005] The main purpose of the present invention is to provide a paving device for a highly viscous modified asphalt pavement. By setting a purification mechanism, the problem that harmful gases are easily generated from the asphalt at high temperatures, which will damage the physical health of construction workers, is solved. By setting a non-sticking mechanism, the problem that highly viscous modified asphalt, due to its high viscosity, is extremely easy to adhere to the leveling plate during the paving process, which affects the continuity and efficiency of the paving operation, is solved. By setting a conveying mechanism and a tamping mechanism, the problem of poor pavement flatness is solved.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A high-viscosity modified asphalt pavement paving device, including a vehicle body, further including:

[0008] A mounting plate, which is connected to the vehicle body by bolts, and a screed is connected to the bottom of the mounting plate through a lifting mechanism;

[0009] An anti-sticking mechanism, which includes an electric heating plate fixedly connected to the inner side wall of the screed, and a heating liquid filled inside the screed;

[0010] A purification mechanism, which includes an air extraction pump fixedly connected to the outer side wall of the screed, a collection port fixedly connected to the air inlet of the air extraction pump through a pipeline, and a baffle fixedly connected to the outer side wall of the collection port;

[0011] A conveying mechanism, which includes an air inlet pipe passing through the screed and fixedly connected to its side wall, and a bearing box fixedly connected to the outer side wall of the screed for temporarily storing gas;

[0012] A tamping mechanism, which includes a driving member fixedly connected to the outer side wall of the screed, a protective cover fixedly connected to the top of the driving member, and a pressing plate movably arranged at the bottom of the protective cover.

[0013] Preferably, the driving member includes a first cylinder fixedly connected to the outer side wall of the screed, a thermal insulation displacer movably arranged inside the first cylinder, a transmission rod fixedly connected to the top of the thermal insulation displacer, and a first U-shaped rod movably connected to the transmission rod.

[0014] Preferably, the driving member further includes a second U-shaped rod fixedly connected to the end face of the first U-shaped rod, a connecting rod movably arranged on the peripheral side wall of the second U-shaped rod, a second cylinder fixedly connected to the top of the first cylinder, and a piston movably arranged inside the second cylinder.

[0015] Preferably, the inside of the second cylinder is communicated with the inside of the first cylinder, the bottom end of the connecting rod is fixedly connected to the top end of the piston, and the depth of the second U-shaped rod is less than the depth of the first U-shaped rod.

[0016] Preferably, the tamping mechanism further includes a transmission disc fixedly connected to the end face of the first U-shaped rod, and a convex block fixedly connected to the outer side wall of the transmission disc;

[0017] The convex block includes a cylinder fixedly connected to the outer side wall of the transmission disc, and a hemisphere fixedly connected to the end face of the cylinder.

[0018] Preferably, the tamping mechanism further includes a limiting sleeve fixedly connected to the bottom of the protective cover, a guide rod movably arranged inside the limiting sleeve, a T-shaped rod fixedly connected to the top of the pressing plate, and a connecting spring fixedly connected to the bottom of the protective cover;

[0019] The bottom end of the connecting spring is fixedly connected to the top end of the pressing plate. The guide rod is located directly below the transmission disc, and the guide rod is inserted into the interior of the T-shaped rod.

[0020] Preferably, the purification mechanism further includes an air outlet pipe fixedly connected to the air outlet of the air extraction pump, and a one-way valve fixedly installed on the inner side wall of the air outlet pipe.

[0021] Preferably, the conveying mechanism further includes an exhaust valve fixedly installed on the inner side wall of the air inlet pipe, and a disc-shaped pipe fixedly connected inside the bearing box. One end of the disc-shaped pipe is communicated with the air inlet pipe.

[0022] Preferably, the lifting mechanism includes a fixed sleeve fixedly connected to the bottom of the mounting plate, a hydraulic cylinder fixedly connected to the inner side wall of the fixed sleeve, and a connecting rod fixedly connected to the output end of the hydraulic cylinder;

[0023] The top of the screed is fixedly connected to the bottom end of the connecting rod.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. In the present invention, the ethylene glycol is heated to a suitable temperature by the electric heating plate, and the asphalt pile is pushed down to level the asphalt pile, so that an unconsolidated asphalt layer is formed on the ground. Among them, the screed is heated by ethylene glycol, so that the heating of the screed is more uniform, and the heated screed can prevent asphalt adhesion.

[0026] 2. In the present invention, the exhaust gas generated by the asphalt is adsorbed into the interior of the screed by the air extraction pump and brought into contact with ethylene glycol. At this time, ethylene glycol reacts or dissolves with the harmful substances in the asphalt exhaust gas, realizing the function of purifying the asphalt exhaust gas. And at this time, the ethylene glycol is in a heated state, which can increase the movement speed of molecules, so that the reaction between the harmful substances and ethylene glycol will be more rapid and sufficient, improving the purification efficiency of the exhaust gas.

[0027] III. In the present invention, the heat carried by the gas will heat the first cylinder, thereby increasing the gas pressure inside the first cylinder, and then pushing the piston to rise to the highest position. At this time, the momentum stored in the two U-shaped rods will push the piston to descend to the middle position of the second cylinder. At the same time, the thermal insulation displacer will be located at the bottom layer of the first cylinder, and the gas will be located at the top layer of the first cylinder and cool down, causing the pressure to drop. At this time, the external air pressure will push the piston to move downward. At this time, the momentum stored in the two U-shaped rods will drive the piston to move upward, causing the piston to be located at the middle position of the second cylinder and the thermal insulation displacer to be located at the top layer of the first cylinder, and thus cycle. During this process, the transmission disk will start to perform a reciprocating pendulum motion, thereby causing the convex block to reciprocate. When the convex block moves to the quadrant point, it will push the pressing plate downward and stretch the connecting spring. When the convex block moves to the highest point, the connecting spring will drive the pressing plate to move upward, so as to achieve the up and down movement of the pressing plate, and then compact the laid asphalt. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 is a schematic diagram of the back structure of the present invention;

[0030] Figure 3 is the present invention Figure 1 schematic diagram of the opened protective cover structure;

[0031] Figure 4 is the present invention Figure 3 schematic diagram of the enlarged structure of A in the present invention;

[0032] Figure 5 is a schematic diagram of the overall internal structure of the present invention;

[0033] Figure 6 is the present invention Figure 5 schematic diagram of the enlarged structure of B in the present invention;

[0034] Figure 7 is a schematic diagram of the internal structure of the screed of the present invention.

[0035] In the figure: 1, mounting plate; 201, fixed sleeve; 202, hydraulic cylinder; 203, connecting rod; 3, screed; 401, air extraction pump; 402, collection port; 403, baffle; 404, one-way valve; 405, electric heating plate; 501, intake pipe; 502, bearing box; 503, exhaust valve; 504, coil pipe; 601, first cylinder; 602, thermal insulation displacer; 603, transmission rod; 604, first U-shaped rod; 605, second U-shaped rod; 606, connecting rod; 607, second cylinder; 608, piston; 609, transmission disc; 6010, convex block; 6011, limit sleeve; 6012, guide rod; 6013, T-shaped rod; 6014, pressing plate; 6015, connecting spring; 6016, protective cover. Detailed implementation mode

[0036] Embodiment 1

[0037] Please refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 7 as shown, the present invention is a high-viscosity modified asphalt pavement paving device, including a vehicle body, and further including:

[0038] Mounting plate 1, the mounting plate 1 is connected to the vehicle body by bolts, and the bottom of the mounting plate 1 is connected with a screed 3 through a lifting mechanism;

[0039] Anti-sticking mechanism, the anti-sticking mechanism includes an electric heating plate 405 fixedly connected to the inner side wall of the screed 3, and a heating liquid filled inside the screed 3. Preferably, the heating liquid can adopt ethylene glycol;

[0040] Purification mechanism, the purification mechanism includes an air extraction pump 401 fixedly connected to the outer side wall of the screed 3, a collection port 402 fixedly connected to the air inlet of the air extraction pump 401 through a pipeline, and a baffle 403 fixedly connected to the outer side wall of the collection port 402. The number of the air extraction pumps 401 is several, which improves the collection efficiency of waste gas. And a plurality of air extraction pumps 401 are provided. When one pump fails, other pumps can continue to work, ensuring the continuity and reliability of the system;

[0041] Conveying mechanism, the conveying mechanism includes an intake pipe 501 penetrating through the screed 3 and fixedly connected to its side wall, and a bearing box 502 fixedly connected to the outer side wall of the screed 3 for temporarily storing gas;

[0042] Tamping mechanism, the tamping mechanism includes a driving member fixedly connected to the outer side wall of the screed 3, a protective cover 6016 fixedly connected to the top of the driving member, and a pressing plate 6014 movably arranged at the bottom of the protective cover 6016.

[0043] The purification mechanism further includes an air outlet pipe fixedly connected to the air outlet of the air extraction pump 401, and a one-way valve 404 fixedly installed on the inner side wall of the air outlet pipe. Among them, the heating liquid only occupies half of the internal space of the screed 3, and the air outlet pipe is inserted below the liquid level of the heating liquid. The one-way valve 404 is provided to prevent the heating liquid from flowing back.

[0044] The lifting mechanism includes a fixed sleeve 201 fixedly connected to the bottom of the mounting plate 1, a hydraulic cylinder 202 fixedly connected to the inner side wall of the fixed sleeve 201, and a connecting rod 203 fixedly connected to the output end of the hydraulic cylinder 202;

[0045] The top of the screed 3 is fixedly connected to the bottom end of the connecting rod 203. The screed 3 is moved by the hydraulic cylinder 202 to adjust the paving thickness.

[0046] The mounting plate 1 is installed on the vehicle body through fixing bolts, and then the hydraulic cylinder 202 is started to drive the screed 3 to move to a suitable height. Then, asphalt is sprayed onto the road surface by the vehicle body, and the vehicle body is started. At this time, the electric heating plate 405 has heated the ethylene glycol to a suitable temperature, and the asphalt pile is pushed down. Through the asphalt pile, the asphalt forms an unstable asphalt layer on the ground. Among them, the screed 3 is heated by ethylene glycol, so that the heating of the screed 3 is more uniform, and the heated screed 3 can prevent asphalt adhesion;

[0047] During the process of paving asphalt, the air extraction pump 401 is in a working state, so as to adsorb the waste gas generated by the asphalt into the interior of the screed 3 and make it contact with ethylene glycol. At this time, ethylene glycol reacts or dissolves with the harmful substances in the asphalt waste gas, realizing the function of purifying the asphalt waste gas. And at this time, the ethylene glycol is in a heated state, which can increase the movement speed of molecules, so that the reaction between the harmful substances and ethylene glycol will be more rapid and sufficient, improving the purification efficiency of the waste gas.

[0048] Embodiment 2

[0049] Please refer to Figure 1 - Figure 6 As shown in the figure, the present invention is a high-viscosity modified asphalt pavement paving device, including a vehicle body, and further includes:

[0050] A mounting plate 1, the mounting plate 1 is connected to the vehicle body through bolts, and the bottom of the mounting plate 1 is connected with a screed 3 through a lifting mechanism;

[0051] An anti-adhesion mechanism, the anti-adhesion mechanism includes an electric heating plate 405 fixedly connected to the inner side wall of the screed 3, and a heating liquid filled in the screed 3. Preferably, the heating liquid can be ethylene glycol;

[0052] Purification mechanism. The purification mechanism includes an air extraction pump 401 fixedly connected to the outer sidewall of the screed 3, a collection port 402 fixedly connected to the air inlet of the air extraction pump 401 through a pipeline, and a baffle 403 fixedly connected to the outer sidewall of the collection port 402. The number of air extraction pumps 401 is several, which improves the collection efficiency of waste gas. Moreover, with multiple air extraction pumps 401 set, when one pump fails, other pumps can continue to work, ensuring the continuity and reliability of the system.

[0053] Transport mechanism. The transport mechanism includes an air inlet pipe 501 passing through the screed 3 and fixedly connected to its sidewall, and a bearing box 502 fixedly connected to the outer sidewall of the screed 3 for temporarily storing gas.

[0054] Tamping mechanism. The tamping mechanism includes a driving member fixedly connected to the outer sidewall of the screed 3, a protective cover 6016 fixedly connected to the top of the driving member, and a pressing plate 6014 movably arranged at the bottom of the protective cover 6016.

[0055] The driving member includes a first cylinder 601 fixedly connected to the outer sidewall of the screed 3, a thermal insulation displacer 602 movably arranged inside the first cylinder 601, a transmission rod 603 fixedly connected to the top of the thermal insulation displacer 602, and a first U-shaped rod 604 movably connected to the transmission rod 603. The top plate of the first cylinder 601 uses a cooler. The outer diameter of the thermal insulation displacer 602 is smaller than the inner diameter of the first cylinder 601. The top of the thermal insulation displacer 602 extends to the outer surface of the first cylinder 601, and the thermal insulation displacer 602 is connected to the first cylinder 601 through a dynamic seal. By setting the thermal insulation displacer 602, a small amount of gas in the first cylinder 601 can flow up and down for exchange, while most of the gas is stratified.

[0056] The driving member further includes a second U-shaped rod 605 fixedly connected to the end face of the first U-shaped rod 604, a connecting rod 606 movably arranged on the circumferential sidewall of the second U-shaped rod 605, a second cylinder 607 fixedly connected to the top of the first cylinder 601, and a piston 608 movably arranged inside the second cylinder 607. The inside of the second cylinder 607 is filled with hydrogen.

[0057] The second cylinder 607 is internally connected to the first cylinder 601. The bottom end of the connecting rod 606 is fixedly connected to the top end of the piston 608. The depth of the second U-shaped rod 605 is less than that of the first U-shaped rod 604. When hot air passes through the bottom of the first cylinder 601, it will heat the first cylinder 601, thereby increasing the gas pressure inside the first cylinder 601, which will push the piston 608 up to the highest position. At this time, the momentum stored in the two U-shaped rods will push the piston 608 down to the middle position of the second cylinder 607. At the same time, the thermal insulation displacer 602 will be located at the bottom layer of the first cylinder 601, and the gas will be located at the top layer of the first cylinder 601 and cool down, causing the pressure to drop. At this time, the external air pressure will push the piston 608 to move downward. At this time, the momentum stored in the two U-shaped rods will drive the piston 608 to move upward, so that the piston 608 is located at the middle position of the second cylinder 607 and the thermal insulation displacer 602 will be located at the top layer of the first cylinder 601, and this cycle will continue. The momentum stored in the U-shaped rods refers to that when the piston 608 and the thermal insulation displacer 602 are forced to move upward, they will drive the U-shaped rods to rotate upward. During this process, the U-shaped rods cannot rotate to the highest position. When the external force disappears, the U-shaped rods will rotate downward under the action of gravity.

[0058] The tamping mechanism further includes a transmission disk 609 fixedly connected to the end face of the first U-shaped rod 604, and a convex block 6010 fixedly connected to the outer side wall of the transmission disk 609;

[0059] The convex block 6010 includes a cylinder fixedly connected to the outer side wall of the transmission disk 609, and a hemisphere fixedly connected to the end face of the cylinder. The convex block 6010 is driven to rotate by the transmission disk 609.

[0060] The tamping mechanism further includes a limit sleeve 6011 fixedly connected to the bottom of the protective cover 6016, a guide rod 6012 movably arranged inside the limit sleeve 6011, a T-shaped rod 6013 fixedly connected to the top of the pressing plate 6014, and a connecting spring 6015 fixedly connected to the bottom of the protective cover 6016;

[0061] The bottom end of the connecting spring 6015 is fixedly connected to the top end of the pressing plate 6014. The guide rod 6012 is located directly below the transmission disk 609, and the guide rod 6012 is inserted into the inside of the T-shaped rod 6013.

[0062] The conveying mechanism further includes an exhaust valve 503 fixedly installed on the inner side wall of the air inlet pipe 501, and a disk-shaped pipe 504 fixedly connected inside the carrier box 502. One end of the disk-shaped pipe 504 is connected to the air inlet pipe 501. The other end of the disk-shaped pipe 504 extends to the outer surface of the carrier box 502. One end of the air inlet pipe 501 away from the disk-shaped pipe 504 is close to the top plate of the screed 3, and the height of its pipe orifice is much greater than the liquid level of the heating liquid. The exhaust valve 503 can only pass gas to prevent the gas from carrying out the heating liquid.

[0063] After the exhaust gas is purified, it will enter the interior of the disc-shaped pipe 504 through the intake pipe 501 and finally be discharged from the disc-shaped pipe 504. The disc-shaped pipe 504 can increase the circulation time of the gas inside the bearing box 502, and the heat carried by the gas will heat the first cylinder 601, so that the gas pressure inside the first cylinder 601 increases, thereby pushing the piston 608 to rise to the highest point. At this time, the momentum stored in the two U-shaped rods will push the piston 608 to descend to the middle position of the second cylinder 607. At the same time, the thermal insulation displacer 602 will be located at the bottom layer of the first cylinder 601, the gas will be located at the top layer of the first cylinder 601, and the temperature will drop, causing the pressure to drop. At this time, the external air pressure will push the piston 608 to move downward. At this time, the momentum stored in the two U-shaped rods will drive the piston 608 to move upward, so that the piston 608 is located at the middle position of the second cylinder 607, and the thermal insulation displacer 602 will be located at the top layer of the first cylinder 601, and this cycle will continue. During this process, the transmission disc 609 will start to make a reciprocating pendulum motion, so that the convex block 6010 moves reciprocally. When the convex block 6010 moves to the quadrant point, it will push the pressing plate 6014 downward and stretch the connecting spring 6015. When the convex block 6010 moves to the highest point, the connecting spring 6015 will drive the pressing plate 6014 to move upward, so as to achieve the up and down movement of the pressing plate 6014, and then compact the laid asphalt.

Claims

1. A high-viscosity modified asphalt pavement paving equipment, comprising a vehicle body, characterized in that: Also includes: A mounting plate (1), the mounting plate (1) being connected to the vehicle body via bolts, and the bottom of the mounting plate (1) being connected to a screed plate (3) via a lifting mechanism; A de-adhesive mechanism, the de-adhesive mechanism comprising an electric heating plate (405) fixedly connected to the inner wall of the ironing plate (3), and a heating liquid filled in the interior of the ironing plate (3); A purification mechanism, the purification mechanism comprising an air pump (401) fixedly connected to the outer side wall of the screed plate (3), a collection port (402) fixedly connected to the air inlet of the air pump (401) via a pipeline, and a baffle (403) fixedly connected to the outer side wall of the collection port (402); The purification mechanism also includes an air outlet pipe fixedly connected to the air outlet of the air pump (401), and a one-way valve (404) fixedly installed on the inner wall of the air outlet pipe; A conveying mechanism, the conveying mechanism comprising an air inlet pipe (501) penetrating the ironing plate (3) and fixedly connected to a side wall thereof, and a carrying box (502) fixedly connected to an outer side wall of the ironing plate (3) for temporarily storing gas; A tamping mechanism, the tamping mechanism comprising a driving member fixedly connected to the outer side wall of the ironing plate (3), a protective cover (6016) fixedly connected to the top of the driving member, and a pressing plate (6014) movably arranged at the bottom of the protective cover (6016); The tamping mechanism also includes a transmission disc (609) fixedly connected to the end surface of the first U-shaped rod (604), and a protrusion (6010) fixedly connected to the outer side wall of the transmission disc (609); The protrusion (6010) comprises a cylinder fixedly connected to the outer side wall of the transmission plate (609), and a hemispherical body fixedly connected to the end surface of the cylinder; The driving member comprises a first cylinder (601) fixedly connected to the outer wall of the ironing plate (3), a heat-insulating displacer (602) movably arranged inside the first cylinder (601), a transmission rod (603) fixedly connected to the top of the heat-insulating displacer (602), and a first U-shaped rod (604) movably connected to the transmission rod (603).

2. The high-viscosity modified asphalt pavement paving equipment according to claim 1, characterized in that: The driving member also includes a second U-shaped rod (605) fixedly connected to the end surface of the first U-shaped rod (604), a connecting rod (606) movably arranged on the peripheral side wall of the second U-shaped rod (605), a second cylinder (607) fixedly connected to the top of the first cylinder (601), and a piston (608) movably arranged inside the second cylinder (607).

3. The high-viscosity modified asphalt pavement paving equipment according to claim 2, characterized in that: The second cylinder (607) is connected to the interior of the first cylinder (601), the bottom end of the connecting rod (606) is fixedly connected to the top end of the piston (608), and the depth of the second U-shaped rod (605) is less than the depth of the first U-shaped rod (604).

4. The high-viscosity modified asphalt pavement paving equipment according to claim 1, characterized in that: The tamping mechanism further comprises a limiting sleeve (6011) fixedly connected to the bottom of the protective cover (6016), a guide rod (6012) movably arranged inside the limiting sleeve (6011), a T-shaped rod (6013) fixedly connected to the top of the pressing plate (6014), and a connecting spring (6015) fixedly connected to the bottom of the protective cover (6016); The bottom end of the connecting spring (6015) is fixedly connected to the top end of the pressure plate (6014), the guide rod (6012) is located directly below the transmission disc (609), and the guide rod (6012) is inserted into the interior of the T-shaped rod (6013).

5. The high-viscosity modified asphalt pavement paving equipment according to claim 1, characterized in that: The conveying mechanism further comprises an exhaust valve (503) fixedly mounted on the inner wall of the air intake pipe (501), and a coil-shaped pipe (504) fixedly connected to the inside of the carrying box (502), one end of the coil-shaped pipe (504) being in communication with the air intake pipe (501).

6. The high-viscosity modified asphalt pavement paving equipment according to claim 1, characterized in that: The lifting mechanism comprises a fixed sleeve (201) fixedly connected to the bottom of the mounting plate (1), a hydraulic cylinder (202) fixedly connected to the inner wall of the fixed sleeve (201), and a connecting rod (203) fixedly connected to the output end of the hydraulic cylinder (202); The top of the ironing plate (3) is fixedly connected to the bottom end of the connecting rod (203).

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